水力下行壓機 的英文怎麼說

中文拼音 [shuǐlìxiàhángyājī]
水力下行壓機 英文
hydraulic down stroke press
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 壓 : 壓構詞成分。
  • 機 : machineengine
  • 水力 : waterpower; hydraulic power水力剝離 [采礦工程] hydraulic stripping; strip with water; 水力采礦 hy...
  1. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流，對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗，分析研究了中低佛勞德數條件下，齒墩墩頭的動水壓強及空化特性，齒墩設施與消力池聯合應用時的流態特性，消力池的水力計算，消能量的估算及其各種影響因素，消能機理和效果，消力池內的流速、壓強特性，摻氣濃度分佈等水力學問題，並提出了實現附加射流齒墩設施的水力設計方法和步驟。
  2. Abstract : this paper analyzes causal factors of flood in the middle reaches of changjiang river. due to neglection of environmental management, soil erosion in the upper and middle reaches of the changjiag river, lake sedimentation, large - scale reclamation of marshes, the flood regulation capacity of the lake was descended, and flood stage was risen and prolonged. consequently more and more river levees and lake dikes were reinforced almost every year to prevent the disasters, which made flood level go up and flood period last for more days. the frequency of flood and waterlogging disasters rose and their damage was enlarged. several proposals for flood prevention including agricultural modernization are put forward

    文摘: 1998年長江大洪水后開始實施的「平垸行洪，退田還湖」的土地利用調整方案，從長遠來說應尋求農業安全且收入逐漸提高條件下的土地利用，長江中游地區應積極推進農業現代化，提高農業勞動生產率，轉移，減少分蓄洪區的人口，移民建鎮，對區內的土地要促進其規模經營，由優秀的有文化的農民經營，平時只有少量的直接從事農業生產的經營管理人員，農忙時則大量地使用季節性合同工或實現機械化，大洪水時退田還湖，減輕長江幹流大洪水的壓力，減少分洪與特大洪災時的損失，這樣還可促進避洪、冬季農業等的發展，也有利於長江中上游地區陡坡耕地的退耕還林，還可在糧食充足時進行休耕，在旱災、糧食緊張時擴大糧食生產?
  3. Mesoscale model simulations have been performed of a severe thunderstorm that occurred on 22 - 23 august 2001 in huabei area in china. combing with satellite, doppler radar images and general weather observations, the evolution mechanism of the severe thunderstorm is analysed with emphasis on the orographic effect of taihang mountain

    將模擬的雲、風、壓場和降水與實況資料進行對比檢驗，在控制模擬效果較為理想的情況下，結合衛星、 doppler雷達觀測和常規天氣資料，對整個對流風暴的發展演變過程進行分析，並著重對強對流風暴發生演變的熱力、動力機制以及重力波特徵進行了研究。
  4. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  5. Based on measurement of strains of both horizontal stirrups in the joint core and longitudinal reinforcement passing througth the joint, in different stages, transfer mechanism and factors affacting seismic behavior of the joint, were analysed. under different shear compression ration, effect of axial force ratio on seismic behawior of the joint was also evaluated, static shear and seismic shear of the joint based on capacity design were investigated. on this basis, new governing criteria and conditions of seismic behavior of the joint were put forward

    通過對節點區水平箍筋以及貫穿節點梁、柱縱筋在不同受力階段應變的精細量測，對節點的傳力機理以及影響抗震性能的因素進行了分析研究；對不同剪壓比條件下軸壓比對節點抗震性能的影響規律進行了分析研究；對不同受力階段梁筋的粘結退化規律以及節點區的剪切變形進行了分析研究；對節點的靜力抗剪與建立在能力設計思路上的抗震抗剪問題進行了深入研究，提出了建立在新思路基礎上的節點抗震性能控制準則和控制條件。
  6. With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly

    四川電網的二灘水電站和500kv輸變電系統投入運行后，由於二灘水電站的大量電力遠距離輸送至負荷中心，迫使負荷中心的火電機組在豐水期大量停機，使負荷中心失去電壓支撐，大大降低了電網的電壓穩定水平；同時，因為四川電網中的無功補償裝置全為靜態無功補償電容器（或電抗器） ，這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用，而在電網出現事故時，不但不能起到電壓支撐作用，反而會促使電網電壓崩潰事故的發生。
  7. Only through control of roll moments could a pilot maintain a level trajectory or dip a wing into a smooth banking turn

    飛行員必須控制滾轉力矩，才能維持水平飛行，或將一側機翼向下壓，做出平順的傾斜轉彎動作。
  8. Abstract : yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure

    文摘:陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田，儲集層主要為三角洲砂體，壓實作用和膠結作用強烈，儲層非均質性非常嚴重，因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析，認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外，還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致，從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中，並沿著有利儲集相帶運移，在酸性水經過的地方形成大量的次生孔隙，為後期油氣運聚提供有利通道及宿住空間，從現今的勘探結果來看，通過研究地層異常壓力縱橫向分佈特徵，並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法
  9. Yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure

    陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田，儲集層主要為三角洲砂體，壓實作用和膠結作用強烈，儲層非均質性非常嚴重，因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析，認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外，還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致，從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中，並沿著有利儲集相帶運移，在酸性水經過的地方形成大量的次生孔隙，為後期油氣運聚提供有利通道及宿住空間，從現今的勘探結果來看，通過研究地層異常壓力縱橫向分佈特徵，並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法
  10. The pressure existing between the guide vane and the runner when the pump - turbine of east china tongbai pumped storage power station stops at different loads is analyzed, and the method for determining the best load at which the generator circuit breaker ( gcb ) switches off during operation of the pump - turbine is illuminated

    摘要介紹華東桐柏抽水蓄能電站的水泵運行時，不同負荷工況下停機、導葉和轉輪間壓力的變化，闡述了華東桐柏抽水蓄能電站1號機組發電機斷路器開斷的最佳負荷值選定。
  11. In this paper according to the design scheme of yao heba power station in nan yahe river, the mathematical model with longer and complicated conduit system, elastic water hammer and pid regulating low of voter turbine adjusting system in the case of the small fluctuation has being built, which include conduit system, surge tank, draft tube, water turbine, generator and governor. the hydraulic losses are taken into account, and nonlinearization in water turbine and the governor is also taken into account

    本文根據南椏河姚河壩水電站的設計方案，對水輪機調節系統，按長引水管道復雜引水系統、彈性水擊、調速器為pid調節規律，在小波動情況下，對包括引水道、調壓井、尾水管、水輪機、發電機、調速器在內的水輪機調節系統建立數學模型，並計及引水管道水力摩阻損失，對水輪機、調速器考慮了其中的非線性，利用功能強大的matlab軟體編制了源程序進行計算機模擬計算。
  12. Abstract : the synthesis, adsorptive properties and some other mechanical properties of a kind of high water - adsorbing fiber were studied, paper made from this high water - adsorbing fiber beaten with 80 % ( wt ) cotton, demonstrated that the fiber had rap id adsorption, high adsorptive capacity and holding capacity for all of distilled water, main - water and man - made urea, and had suitable mechanical properties to be used to make high water - adsorbing paper

    文摘:本文報道了一種高吸水纖維的合成、吸水性能及其部分物理機械性能，並利用這種高吸水纖維與純棉纖維按1 ： 4的比例進行混合打槳而製成一種高吸水紙，對這種吸水紙也進行了吸水性能及部分機械性能的測定，結果表明所合成的高吸水纖維對蒸餾水，自來水及人工尿液的吸附速度快，吸收量高，並且可在一定的壓力下保持較高的吸水量，還可以與棉纖維混合成紙。
  13. The hong kong and us dollars have been linked since 1983 through a currency board system under which inter - bank interest rates rise automatically when there is selling pressure on the hong kong dollar. this makes it difficult to speculate against the hong kong dollar because inter - bank rates can become so high that selling hong kong dollars becomes too costly

    ? 。在該制度下，當港元遇到沽售壓力，銀行同業拆息率會自動調升。這個機制令投機炒賣港元變得困難，因為銀行同業拆息率可以升至很高的水平，以致沽售港元的代價變得太大。
  14. For the sake of the research about hydroelectric interfere among machines, the article utilized the simulink in matlab as simulating tool, meanwhile established the simulating model about two high head diversion water turbines regulation system in violent fluctuating pressure sharing one head race tunnel and surge tank and one penstock. then calculated the load rejection transition process by means of the real parameters of a hydro power station, analysed the interfere of hydro power station safety and stable nenring brought by hydroelectric interfere and put forward a series of measures that lightening the hydroelectric interfere

    為了研究機組間的水力干擾，本文採用matlab下的simulink作為模擬工具，建立共用有壓引水管道、調壓井、壓力主管的兩臺高水頭引水式水輪機調節系統大波動時的模擬模型，引入實際電站的參數，對甩負荷過渡過程進行了模擬計算，分析水力干擾對電站安全、穩定運行所造成的影響，並提出了一系列減輕水力干擾的措施。
  15. During past year, 28 times of measurements for two units of b plant of zhelin hydropower station were made, the states of pressure pulsation in the draft cone tube, head cover and spiral case of units were acquired under different water heads, and the influences of that on safety and stability of units operations were also acquired

    摘要在長達一年多的時間里，對柘林水電廠b廠兩臺機組進行了28臺次試驗，全面掌握了機組各水頭下尾水錐管、頂蓋和渦殼中的壓力脈動情況，以及對機組安全穩定運行的影響。
  16. The hydraulic analysis of pump for suction penetration of bucket foundation as well as the pressure head relation between bucket cavity and pump inlet for different water depths and different pump mounting heights are described in this paper

    對桶形基礎平臺負壓沉貫過程中汲水泵機進行了初步水力分析，討論了不同水深、不同泵機安裝高度情況下，桶腔和泵機進口之間的壓頭關系。
  17. ( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward

    （ 2 ）採用有限元離散?優化法進行參數的反演分析； （ 3 ）針對深埋隧洞的高外水壓力問題，進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法； （ 4 ）以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象，採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬，並對其外水壓力進行了分析和研究，提出了滲流控制的具體措施。
  18. At same time, author suggests to change cavitation factor to important operation condition during pressure fluctuation test so to avoid producing the phenomenon of cavitation stimulus in the prototype operation

    同時，建議針對水輪機的重要運行工況，增加不同空化系數下的壓力脈動試驗，以避免在真機運行時可能產生「空化自激」現象，確保原型機組的安全運行。
  19. As an inlet structure, the forbay is an important part of the pumping station. the pressurized forbay, close in top structure, is a kind of particular forbay in which water is pressurized. based on the integral hydraulic model test of shanghai changqiao waterwork ' s water - transport pumping station, some research on the hydraulic characteristics of the pressurized forbay has been done in the paper. the main content is listed as follows : l. the hydraulic characteristics of the pressurized forbay in different water supply combination and different pump unit combination without divertion measure, and the reason of the poor flow state. 2. the hydraulic characteristics of the pressurized forbay with diversion pier, and the reason why the flow state can be improved. 3. the experimental research on the critical air suction condition of the pressurized forbay

    本文基於上海長橋自來水廠改造工程送水泵站整體水力模型試驗，對有壓前池的水力特性進行了研究，研究的主要內容如下： 1 、無導流措施的有壓前池在不同供水組合及不同機組開機組合條件下的水力特性，並分析了流態較差的原因； 2 、加設導流墩後有壓前池的水力特性，以及加設導流墩流態改善的原因; 3 、有壓前池進氣臨界條件的試驗研究； 4 、水泵進氣以後水泵性能的討論。
  20. Based on calculation example, mathematic models are developed to analyze the stability and regulation performance of the unit under the conditions of small water level fluctuation and hydraulic disturbance

    結合雙機共尾水調壓室系統的實際算例，建立相應的數學模型，進行小波動和水力干擾情況下的穩定性和調節品質分析。
分享友人
分享到 Line

分享到臉書